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cuticle, epidermis, connective tissue (dermis), layer of iridocytes, and more connective tissue
epidermis (hypodermis) that secretes a complex cuticle, inner procuticle (protein and chitin) and outer epicuticle (protein and lipid for waterproofing)
have epidermis (stratified epithelium of ectodermal origin) and dermis (connective tissue of mesodermal origin)
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